Carbon flux soil ring device suitable for potted plants and using method
By designing a carbon flux soil ring device suitable for potted plants, the problem of mismatch between potted plant container size and soil ring was solved, enabling flexible adaptation and long-term monitoring of various potted plants and providing accurate carbon flux data.
Patent Information
- Application Number
- CN202511589799.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2025-12-19
AI Technical Summary
The variety of sizes of existing potted containers and the limited root canopy of plants, coupled with the unsuitability of commercially available soil ring diameters and insertion depths for small potted plants, make it difficult to effectively monitor soil greenhouse gas fluxes.
A carbon flux soil ring device comprising a soil ring and an air chamber was designed. The soil ring can be inserted into the potting soil. The air chamber is equipped with a sealed measurement chamber and an interface, which can be connected via a detachable connection or an adapter. It incorporates a tip structure, threaded connection and sealing ring design. The adapter has a stepped multi-diameter connection port and is equipped with a pressure balancing valve and a semiconductor cooling chip.
It enables flexible adaptation to various potted soil rings, reduces damage to plant roots and soil structure, ensures the feasibility of long-term in-situ monitoring, quickly balances air pressure, simulates the effects of different environmental temperatures, and provides accurate carbon flux data.
Smart Images
Figure CN121164598A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of indoor potted plant experimental technology, specifically, it relates to a carbon flux soil ring device suitable for potted plants and its usage method. Background Technology
[0002] Soil greenhouse gas fluxes are a crucial part of the biogeochemical cycle. CO2, CH4, N2O, and their isotopes are constantly exchanged between the atmosphere and soil. Soil greenhouse gas flux data are frequently used for: (1) Understand the characteristics of greenhouse gas release from the soil surface of an ecosystem; (2) To study the biological and abiotic regulatory mechanisms of greenhouse gas release from soil; (3) Evaluate the effectiveness of carbon capture, utilization and storage (CCUS).
[0003] However, due to the variety of potted container sizes and the limited root canopy range of plants, the diameter and insertion depth of commercially available soil rings may not be suitable for small potted plants. Summary of the Invention
[0004] To solve the above problems, the present invention adopts the following technical solution: A carbon flux soil loop device suitable for potted plants, comprising: Soil ring, used to be inserted into the potting soil; The gas chamber has a sealed measuring chamber inside, an opening at the lower end of the gas chamber, and an interface for connecting a carbon flux detection device. The soil ring is detachably connected to the opening or connected via an adapter.
[0005] Furthermore, the adapter is detachably connected between the air chamber and the soil ring, and the upper end of the adapter is provided with an upper interface for connecting to the opening, and the lower end of the adapter is provided with a lower interface for connecting to the soil ring.
[0006] Furthermore, the lower interface of the adapter consists of multiple connection ports of different diameters, which are distributed in a stepped manner along the axial direction, and each connection port is provided with a sealing ring.
[0007] Furthermore, a pressure balancing valve is provided on the air chamber.
[0008] Furthermore, the bottom end of the soil ring has a pointed structure.
[0009] Furthermore, the top of the opening is provided with an inwardly extending sealing flange, the inner wall of the opening is provided with a first internal thread, the upper interface is provided with a first external thread that mates with the first internal thread, and a sealing ring is provided between the upper interface and the sealing flange.
[0010] Furthermore, the top of the soil ring is provided with a radially outwardly extending boss, the outer ring of the boss is provided with a second external thread, and the inner wall of the lower interface is provided with a second internal thread that mates with the second external thread.
[0011] Furthermore, a semiconductor cooling chip is embedded in the side wall of the air chamber. The inner side of the semiconductor cooling chip contacts the measurement chamber of the air chamber, and a heat sink is provided on the outer side to simulate the effect of different ambient temperatures on the measurement. A temperature and humidity sensor is provided at the top of the air chamber.
[0012] A method for using a carbon flux soil loop device suitable for potted plants, employing any of the above-described carbon flux soil loop devices suitable for potted plants, the method comprising the following steps: S1. One day before the start of the pot experiment, press the tip of the soil ring vertically and steadily into or cut into the soil, and keep the soil ring from being moved throughout the growing season. S2. Select whether to use an adapter based on the size of the soil ring, and connect the air chamber to the soil ring directly or through the adapter; S3. Open the air pressure balancing valve and wait 3-5 seconds until the air pressure inside and outside the measuring chamber is balanced by the balancing valve. Then close the air pressure balancing valve. S4. Connect the sampling tube of the carbon flux detection equipment to the top of the gas chamber and perform the measurement; S5. If it is necessary to simulate the effect of different ambient temperatures on the measurement, the semiconductor cooling chip can be activated to control the temperature of the measurement chamber and read the real-time data of the temperature and humidity sensor to simulate the effect of different ambient temperatures on the measurement. S6. If other potted plants need to be measured, repeat steps S2 to S4.
[0013] The beneficial effects of this invention are: By providing an optional adapter and its stepped multi-diameter lower interface, this invention allows the device to flexibly adapt to potted soil rings of various diameters, achieving a high degree of versatility.
[0014] This invention, combined with the pointed structure at the bottom of the soil ring, can be easily and smoothly inserted into the limited potting soil, minimizing damage to the plant roots and the original soil structure, and ensuring the feasibility of long-term, in-situ monitoring throughout the growing season.
[0015] This invention achieves a secure and sealed detachable connection between the air chamber, adapter, and soil ring through a threaded connection combined with a sealing ring and sealing flange design.
[0016] The design of the pressure balancing valve in this invention enables the rapid balancing of the internal and external air pressures before measurement, avoiding fluctuations in the initial gas concentration due to pressure differences. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a carbon flux soil ring device suitable for potted plants according to the present invention; Figure 2 This is a schematic diagram of the adapter structure of a carbon flux soil ring device suitable for potted plants according to the present invention; Figure 3 This is a schematic diagram of the air chamber structure of a carbon flux soil ring device suitable for potted plants according to the present invention.
[0018] In the diagram: 1. Air chamber; 2. Soil ring; 3. Air pressure balance valve; 4. Tip structure; 5. Sealing flange; 6. Adapter. Detailed Implementation
[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0020] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.
[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.
[0022] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.
[0024] Example 1
[0025] refer to Figures 1 to 3A carbon flux soil loop device suitable for potted plants, comprising: Soil ring 2, used for inserting into the potting soil; The gas chamber 1 has a sealed measuring chamber inside. The lower end of the gas chamber 1 has an opening and an interface for connecting a carbon flux detection device. The soil ring 2 is detachably connected to the opening or connected via an adapter 6.
[0026] Preferably, the soil ring 2 is made of polyvinyl chloride (PVC).
[0027] In practice, the detection equipment is a LI-COR carbon flux device, which is connected to the LI-COR carbon flux device via pipeline.
[0028] This invention is a practical device for better collecting soil greenhouse gas flux using a LI-COR carbon flux device, in order to better analyze the greenhouse gas release characteristics of potted soil and study the biological and microbial regulatory mechanisms of greenhouse gas release from potted soil.
[0029] In this embodiment, the adapter 6 is detachably connected between the air chamber 1 and the soil ring 2, and the upper end of the adapter 6 is provided with an upper interface for connecting to the opening, and the lower end of the adapter 6 is provided with a lower interface for connecting to the soil ring 2.
[0030] In this embodiment, the lower interface of the adapter 6 consists of multiple connection ports of different diameters, which are distributed in a stepped manner along the axial direction, and each connection port is provided with a sealing ring.
[0031] By providing an optional adapter and its stepped multi-diameter lower interface, this invention allows the device to flexibly adapt to potted soil rings of various diameters, achieving a high degree of versatility.
[0032] In this embodiment, a pressure balancing valve 3 is provided on the air chamber 1.
[0033] The design of the pressure balancing valve in this invention enables the rapid balancing of the internal and external air pressures before measurement, avoiding fluctuations in the initial gas concentration due to pressure differences.
[0034] In this embodiment, the bottom end of the soil ring 2 is a pointed structure 4.
[0035] This invention, combined with the pointed structure at the bottom of the soil ring, can be easily and smoothly inserted into the limited potting soil, minimizing damage to the plant roots and the original soil structure, and ensuring the feasibility of long-term, in-situ monitoring throughout the growing season.
[0036] In this embodiment, an inwardly extending sealing flange 5 is provided at the top of the opening, a first internal thread is provided on the inner wall of the opening, a first external thread is provided on the upper interface to mate with the first internal thread, and a sealing ring is provided between the upper interface and the sealing flange 5.
[0037] In this embodiment, the top of the soil ring 2 is provided with a radially outwardly extending boss, the outer ring of the boss is provided with a second external thread, and the inner wall of the lower interface is provided with a second internal thread that mates with the second external thread.
[0038] The protrusion design allows the skirt to be gently stepped on during installation, making it easier and more stable for the soil ring 2 to be inserted into the soil, and effectively preventing the soil ring from sinking due to watering or the passage of time.
[0039] This invention achieves a secure and sealed detachable connection between the air chamber, adapter, and soil ring through a threaded connection combined with a sealing ring and sealing flange design.
[0040] In this embodiment, a semiconductor cooling chip is embedded in the side wall of the air chamber 1. The inner side of the semiconductor cooling chip is in contact with the measurement chamber of the air chamber 1, and a heat sink is provided on the outer side to simulate the effect of different ambient temperatures on the measurement. A temperature and humidity sensor is provided at the top of the air chamber 1.
[0041] This invention can simulate the effects of different ambient temperatures on soil respiration and simultaneously read real-time data from temperature and humidity sensors, providing crucial data support for in-depth analysis of the impact of ambient temperature on carbon flux changes.
[0042] Example 2
[0043] This embodiment describes a method for using a carbon flux soil ring device suitable for potted plants. It employs a carbon flux soil ring 2 device suitable for potted plants from Embodiment 1. The method includes the following steps: S1. One day before the start of the pot experiment, press the tip of soil ring 2 vertically and steadily into or cut into the soil, and keep soil ring 2 from being moved throughout the growing season. S2. Depending on the size of the soil ring 2, select whether to use the adapter 6, and connect the air chamber 1 to the soil ring 2 directly or through the adapter 6. S3. Open the air pressure balance valve 3 and wait 3-5 seconds until the air pressure inside and outside the measuring chamber is balanced by the balance valve. Then close the air pressure balance valve 3. S4. Connect the sampling tube of the carbon flux detection device to the top of the gas chamber 1 and perform the measurement; S5. If it is necessary to simulate the effect of different ambient temperatures on the measurement, the semiconductor cooling chip can be activated to control the temperature of the measurement chamber and read the real-time data of the temperature and humidity sensor to simulate the effect of different ambient temperatures on the measurement. S6. If other potted plants need to be measured, repeat steps S2 to S4.
[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.
Claims
1. A carbon flux soil ring device suitable for use in potting, characterised in that, The application relates to a carbon flux soil ring device for potting, comprising the following parts: a soil ring for insertion into the potting soil; an air chamber, the inside of the air chamber having a sealed measuring chamber, the lower end of the air chamber being provided with an opening, and the air chamber being provided with an interface for connecting a carbon flux detection device, the soil ring being detachably connected with the opening or being connected with the opening through an adapter.
2. A carbon flux soil ring device suitable for use in a pot according to claim 1, wherein, The adapter is detachably connected between the air chamber and the soil ring, and the upper end of the adapter is provided with an upper interface connected with the opening, and the lower end of the adapter is provided with a lower interface connected with the soil ring.
3. A carbon flux soil ring device suitable for use in a pot according to claim 2, wherein, The lower interface of the adapter is a plurality of connection ports with different diameters, the connection ports are distributed in a stepped manner along the axial direction, and a sealing ring is arranged at each connection port.
4. A carbon flux soil ring device suitable for use in a pot according to claim 1, wherein, The air chamber is provided with an air pressure balancing valve.
5. A carbon flux soil ring device suitable for use in a pot according to claim 1, wherein, The bottom end of the soil ring is in a pointed structure.
6. A carbon flux soil ring device suitable for use in a pot according to claim 2, wherein, The top end of the opening is provided with an inwardly extending sealing flange, the inner wall of the opening is provided with a first inner thread, the upper interface is provided with a first outer thread matched with the first inner thread, and a sealing ring is arranged between the upper interface and the sealing flange.
7. A carbon flux soil ring device suitable for use in a pot according to claim 2, wherein, The top end of the soil ring is provided with a boss extending radially outward, the outer circle of the boss is provided with a second outer thread, and the inner wall of the lower interface is provided with a second inner thread matched with the second outer thread.
8. A carbon flux soil ring device suitable for use in a pot according to claim 1, characterised in that, The side wall of the air chamber is embedded with a semiconductor refrigeration sheet, the inner side of the semiconductor refrigeration sheet is in contact with the measuring chamber of the air chamber, and the outer side is provided with a cooling fin for simulating the influence of different environmental temperatures on measurement, and a temperature and humidity sensor is arranged at the top in the air chamber.
9. A method of use of a carbon flux soil ring device suitable for use in potting, characterised in that, The application relates to a carbon flux soil ring device for potting, comprising the following parts: S1, one day before the start of the potting experiment measurement, the pointed end of the soil ring is vertically and stably pressed into or cut into the soil, and the soil ring is not moved in the whole growth season; S2, whether to use an adapter is selected according to the size of the soil ring, and the air chamber is directly connected with the soil ring or connected with the soil ring through the adapter; S3, the air pressure balancing valve is opened and waited for 3-5 seconds, and then the air pressure balancing valve is closed after the air pressure inside and outside the measuring chamber is balanced through the balancing valve; S4, the sampling pipe of the carbon flux detection device is connected with the top of the air chamber, and measurement is carried out; S5, if it is necessary to simulate the influence of different environmental temperatures on measurement, the semiconductor refrigeration sheet can be started to control the temperature of the measuring chamber, and real-time data of the temperature and humidity sensor are read to simulate the influence of different environmental temperatures on measurement; S6, if other pots need to be measured, steps S2 to S4 are repeated.